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StorageClass 为管理员提供了描述存储 "类" 的方法。 不同的类型可能会映射到不同的服务质量等级或备份策略，或是由集群管理员制定的任意策略。
每个 StorageClass 都包含 provisioner、parameters 和 reclaimPolicy 字段， 这些字段会在 StorageClass 需要动态分配 PersistentVolume 时会使用到。
StorageClass 对象的命名很重要，用户使用这个命名来请求生成一个特定的类。 当创建 StorageClass 对象时，管理员设置 StorageClass 对象的命名和其他参数，一旦创建了对象就不能再对其更新。
更多详情参考：
# 安装nfs服务并启动yum -y install nfs-common nfs-utils rpcbindsystemctl start nfs && systemctl enable nfssystemctl start rpcbind && systemctl enable rpcbind# 创建一个共享目录mkdir -p /data/nfsprovisionerchmod 777 /data/nfsprovisionerchown nfsnobody /data/nfsprovisioner cat >> /etc/exports <
注意： 修改对应nfs地址和目录
apiVersion: storage.k8s.io/v1kind: StorageClassmetadata: name: managed-nfs-storageprovisioner: fuseim.pri/ifs # or choose another name, must match deployment's env PROVISIONER_NAME'parameters: archiveOnDelete: "false"---apiVersion: v1kind: ServiceAccountmetadata: name: nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: default---kind: ClusterRoleapiVersion: rbac.authorization.k8s.io/v1metadata: name: nfs-client-provisioner-runnerrules: - apiGroups: [""] resources: ["persistentvolumes"] verbs: ["get", "list", "watch", "create", "delete"] - apiGroups: [""] resources: ["persistentvolumeclaims"] verbs: ["get", "list", "watch", "update"] - apiGroups: ["storage.k8s.io"] resources: ["storageclasses"] verbs: ["get", "list", "watch"] - apiGroups: [""] resources: ["events"] verbs: ["create", "update", "patch"]---kind: ClusterRoleBindingapiVersion: rbac.authorization.k8s.io/v1metadata: name: run-nfs-client-provisionersubjects: - kind: ServiceAccount name: nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: defaultroleRef: kind: ClusterRole name: nfs-client-provisioner-runner apiGroup: rbac.authorization.k8s.io---kind: RoleapiVersion: rbac.authorization.k8s.io/v1metadata: name: leader-locking-nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: defaultrules: - apiGroups: [""] resources: ["endpoints"] verbs: ["get", "list", "watch", "create", "update", "patch"]---kind: RoleBindingapiVersion: rbac.authorization.k8s.io/v1metadata: name: leader-locking-nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: defaultsubjects: - kind: ServiceAccount name: nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: defaultroleRef: kind: Role name: leader-locking-nfs-client-provisioner apiGroup: rbac.authorization.k8s.io---apiVersion: apps/v1kind: Deploymentmetadata: name: nfs-client-provisioner labels: app: nfs-client-provisioner # replace with namespace where provisioner is deployed namespace: defaultspec: replicas: 1 strategy: type: Recreate selector: matchLabels: app: nfs-client-provisioner template: metadata: labels: app: nfs-client-provisioner spec: serviceAccountName: nfs-client-provisioner containers: - name: nfs-client-provisioner # image: quay.io/external_storage/nfs-client-provisioner:latest image: registry.cn-shanghai.aliyuncs.com/leozhanggg/storage/nfs-client-provisioner:latest volumeMounts: - name: nfs-client-root mountPath: /persistentvolumes env: - name: PROVISIONER_NAME value: fuseim.pri/ifs - name: NFS_SERVER value: 10.88.88.108 - name: NFS_PATH value: /data/nfsprovisioner volumes: - name: nfs-client-root nfs: server: 10.88.88.108 path: /data/nfsprovisioner
[root@ymt108 ~]# kubectl apply -f nfs-client-provisioner.yamlstorageclass.storage.k8s.io/managed-nfs-storage createdserviceaccount/nfs-client-provisioner createdclusterrole.rbac.authorization.k8s.io/nfs-client-provisioner-runner createdclusterrolebinding.rbac.authorization.k8s.io/run-nfs-client-provisioner createdrole.rbac.authorization.k8s.io/leader-locking-nfs-client-provisioner createdrolebinding.rbac.authorization.k8s.io/leader-locking-nfs-client-provisioner createddeployment.apps/nfs-client-provisioner created[root@ymt108 ~]# kubectl get pod |grep nfs-client-provisionernfs-client-provisioner-6d7b4c474c-8xftt 1/1 Running 0 39m
kind: PersistentVolumeClaimapiVersion: v1metadata: name: test-claim annotations: volume.beta.kubernetes.io/storage-class: "managed-nfs-storage"spec: accessModes: - ReadWriteMany resources: requests: storage: 1Mi---kind: PodapiVersion: v1metadata: name: test-podspec: containers: - name: test-pod image: busybox command: - "/bin/sh" args: - "-c" - "touch /mnt/SUCCESS && exit 0 || exit 1" volumeMounts: - name: nfs-pvc mountPath: "/mnt" restartPolicy: "Never" volumes: - name: nfs-pvc persistentVolumeClaim: claimName: test-claim
[root@ymt108 ~]# kubectl apply -f test-pod.yamlpersistentvolumeclaim/test-claim createdpod/test-pod created[root@ymt108 ~]# cd /data/nfsprovisioner/[root@ymt108 nfsprovisioner]# lsdefault-test-claim-pvc-5763d9c1-2860-4aee-a408-c10ef94d252d[root@ymt108 nfsprovisioner]#[root@ymt108 nfsprovisioner]# kubectl delete -f /root/test-pod.yamlpersistentvolumeclaim "test-claim" deletedpod "test-pod" deleted[root@ymt108 nfsprovisioner]# ls[root@ymt108 nfsprovisioner]#
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